Hi Enrico,
Looking forward, I've found other informations.
Many seem to be erroneous. First, Djo-Kou-La was a small village in Yunnan, that's sure. This is also the name of a district (later).
It seems to be actually called Binchuan, see the map below with GPS coordinates :
Follow translation of a french catholic text of the year 1907 :
"Je choisis Djo-kou-la, comme centre de mon nouveau district. Djo-kou-la est situé à une dizaine de kilomètres du Fleuve Bleu, sur la rivière de Pé-yen-tsin. C'est un trou perché à 1.240 mètres d'altitude et, pour en sortir, il faut monter à 2.800 mètres et 3.000 mètres, par des sentiers presque toujours à pic : pas de routes évidemment, des pistes de chèvres et c'est tout !"
"I've chosen Djo-Kou-La as center of my new district. Djo-kou-la is located about 10km from the "Fleuve bleu" on the Pe-Yen-Tsin river (take care a town with the same name is more in south of Yunnan, I do not know if there's any relation). That's lost place of an elevation of 1240m, and to leave it, you should climb up to 2800m and 3000m through sheer paths : no road, some goat paths and that's all !"
According to most of the authors (especially the catholics who works in Djo-Kou-La) the place belongs to Yunnan. The Yangtse (Fleuve Bleu) is north Binchuan, about 40km. I did not locate the Pe-yen-tsin river. But elevation match to the area between Binchuan and northern/eatsern limits of Yunnan (close to Yangtse riv.).
Below a data which seems to come from Ahrens work : Ahrens, D. (2004): Monographie der Sericini des Himalaya (Coleoptera, Scarabaeidae). Dissertation.de - Verlag im Internet GmbH, Berlin, 534pp.
GPS coordinates are in extreme north west Yunnan (high elevations about 4000m) but I didn't find anything else to confirm this location.
If I find new informations, I will let you know.
Bye
Sebastian
From: Alericor
Sent: Wednesday, November 19, 2014 1:07 PM
To: [log in to unmask]
Subject: R: R: Chinese's locality
I found this Map that should be very usefull, but on the WEB but we would need a major details to be able to look after Dje-Kou-La
Enrico
Da: Scarab Beetle Taxonomy Discussion List [mailto:[log in to unmask]] Per conto di Sebentomo
Inviato: martedì 18 novembre 2014 21.12
A: [log in to unmask]
Oggetto: Re: R: Chinese's locality
An old remembering bring me to a work of Krikken 1977 (also available in pdf on internet) where you could find :
Using this spelling and internet, I've found this on the first page :
If Djo-Kou-La is now Binchuan and with the above GPS coordinates, if you cross this informations to the text of the first biblio reference and the entomological data you could get, you should have some good beginning of answer ...
Expecting this could help.
Sébastien
From: Alericor
Sent: Tuesday, November 18, 2014 8:50 PM
To: [log in to unmask]
Subject: R: Chinese's locality
Thank you Keith. I hoped in a more precise location.
Ciao
Enrico
Enrico Ricchiardi
Corso A. Tassoni 79/4
10143 Torino - I
Trichiini and Valgini of the World
Da: Scarab Beetle Taxonomy Discussion List [mailto:[log in to unmask]] Per conto di Denis Keith
Inviato: martedì 18 novembre 2014 12.58
A: [log in to unmask]
Oggetto: Re: Chinese's locality
we had the same problem when we described tanyproctus yunnanus from elder laterial from the paris -museum
according thierry deuve, the fauna with the label djokoula / djekoula / djoukoula suggest to that this locality should be NW of kunming on yunnan-plateau.
ciao
denis
Denis Keith=============================================Muséum des Sciences Naturelles et de Préhistoire5bis, Bd de la CourtilleF-28000 [log in to unmask] http://deniskeith.jimdo.com/http://www-museum.unl.edu/research/entomology/workers/DKeith.htmphotos faune et flore d'Eure-et-Loir: http://naturaphoto28.free.fr/https://www.facebook.com/denis.keith.33 Le 18/11/2014 09:39, Alericor a écrit :
Dear All
I need help to locate a Chinese's locality. The specimen label is:
Dje-Kou-La, alt 1200 m, N/O Yunnan, Le Moult (without a date)
Several Lucanidae and some Trichiina from Le Moult came from that locality.
Enrico Ricchiardi